HTML <iframe> longdesc Attribute
Point to a page with a long description of the content of the <iframe>:
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The longdesc attribute is not supported by any of the major browsers.
Definition and Usage
The <iframe> longdesc attribute is not supported in HTML5.
The longdesc attribute specifies a URL to a page that contains a long description of the content of an <iframe>.
Note: The longdesc attribute is so poorly supported that it should not be used. To offer a long description of an <iframe> (if necessary), simply create a link (that is visible to anyone) to a page with the description.
|URL||A URL to a page that describes the content of an <iframe>.
HTML <iframe> tag
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